1186164171613 has 2 divisors, whose sum is σ = 1186164171614. Its totient is φ = 1186164171612.

The previous prime is 1186164171607. The next prime is 1186164171631. The reversal of 1186164171613 is 3161714616811.

Together with next prime (1186164171631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1098025249689 + 88138921924 = 1047867^2 + 296882^2 .

It is a cyclic number.

It is not a de Polignac number, because 1186164171613 - 2⁵ = 1186164171581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1186164178613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593082085806 + 593082085807.

It is an arithmetic number, because the mean of its divisors is an integer number (593082085807).

Almost surely, 2^{1186164171613} is an apocalyptic number.

It is an amenable number.

1186164171613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1186164171613 is an equidigital number, since it uses as much as digits as its factorization.

1186164171613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 46.

The spelling of 1186164171613 in words is "one trillion, one hundred eighty-six billion, one hundred sixty-four million, one hundred seventy-one thousand, six hundred thirteen".